On this day in movie history - Star Trek VI: The Undiscovered Country (1991):

Star Trek VI: The Undiscovered Country

directed by Nicholas Meyer,

written by Nicholas Meyer and Denny Martin Flinn,

based on a story by Leonard Nimoy, Lawrence Konner and Mark Rosenthal,

was released in the United States on December 6, 1991.
Music by Cliff Eidelman.

Cast:

William Shatner, Leonard Nimoy, DeForest Kelley, James Doohan, George Takei, Walter Koenig, Nichelle Nichols, Kim Cattrall, Christopher Plummer, David Warner, Rosanna DeSoto, Iman, Christian Slater, Brock Peters, René Auberjonois, Michael Dorn.

On this day in movie history - Star Trek II: The Wrath of Khan (1982):

Star Trek II: The Wrath of Khan,

directed by Nicholas Meyer,

written by Jack B. Sowards,

based on a story by Harve Bennett and Jack B. Sowards,

was released in the United States on June 4, 1982.

Music by James Horner.

Cast:
William Shatner, Leonard Nimoy, DeForest Kelley, James Doohan, Walter Koenig, George Takei, Nichelle Nichols, Bibi Besch, Merritt Butrick, Paul Winfield, Kirstie Alley, Ricardo Montalbán.